Datasheet

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datasheet SD Card
Rev. 1.0
MMBTFxxGWBCA-xMExx
4.3.6 SCR Register
In addition to the CSD register, there is another configuration register named SD CARD Configuration Register (SCR). SCR provides information on the
SD Card’s special features that were configured into the given card. The size of SCR register is 64bits. The register shall be set in the factory by the SD
Card manufacturer. The following table describes the SCR register content.
[Table 4-8] : The SCR Fields
Name Field Width
Cell
Type
SCR-slice
SCR Value
4GB 8GB 16GB
SCR structure SCR_STRUCTURE 4 R [63:60] SCR Version 1.0
SD Memory Card - Spec. Version SD_SPEC 4 R [59:56] Version 2.00 or Version 3.00
data_status_after erases DATA_STAT_AFTER_ERASE 1 R [55:55] 0
SD Security Support SD_SECURITY 3 R [54:52] Version 2.00
DAT Bus widths supported SD_BUS_WIDTHS 4 R [51:48] 1 bit(DAT0) + 4 bit(DAT0-3)
Spec. Version 3.00 or Higher SD_SPEC3 1 R [47] Version 3.00
Reserved 13 R [46:34] -
Command Support bits CMD_SUPPORT 14 R [33:32] Not Supported
Reserved for manufacturer usage - 32 R [31:0] -